Microlens array film and display module
Abstract
The present disclosure discloses a microlens array film including a film-shaped main body layer and a plurality of microlenses arranged on the top of the main body layer, the top surface of the microlens is a cambered surface, and the projected image on the main body layer is rectangular. The disclosure also discloses a display module. The microlens array film of the present disclosure includes a plurality of microlenses arranged in an array, the top surface of the microlens is a cambered surface and has a rectangular projected image on the film like main body layer. The filling ratio of the microlens array reaches 100%, which can fully cover all the sub-pixels. During the 3D display, all the pixel information can be restored in space to avoid the missing of the 3D scene information and ensure the naked eye 3D viewing effect.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A microlens array film comprising a film-shaped main body layer and a plurality of microlenses arranged on a top surface of the main body layer, wherein the top surface of the microlens is arc-shaped, and a projected image of the microlens on the main body layer is rectangular;
wherein heights of the microlenses are equal and areas of projected images of the microlenses on the main body layer are equal; and
wherein a top surface of the microlens is a part of a parabola curve;
wherein the microlens array film further comprises a recessed channel formed between the two adjacent microlenses.
2. The microlens array film according to claim 1 , wherein a focal length of the microlens satisfies:
f
=
4
h
2
+
L
2
8
h
(
n
-
1
)
-
h
(
n
-
1
)
wherein f is the focal length of the microlens, n is the refractive index of the main body layer, h is the height of the microlens, when a projected image of the top surface of the microlens on the main body layer is rectangular, L is the length of the long side of the bottom surface of the microlens, when a projected image of the top surface of the microlens on the main body layer is square, L is the length of the bottom surface of the microlens.
3. A display module comprising a microlens array film, a display panel and an upper polarizer, wherein the microlens array film comprises a film-shaped main body layer and a plurality of microlenses arranged on a top surface of the main body layer, a top surface of the microlens is a cambered surface and a projected image on the main body layer is rectangular, a upper surface and a lower surface of the upper polarizer are respectively attached to a lower surface of the main body layer of the microlens array film and a light emitting surface of the display panel;
wherein heights of the microlenses are equal and areas of projected images of the microlenses on the main body layer are equal; and
wherein a top surface of the microlens is a part of a parabola curve.
4. The display module according to claim 3 , wherein the projected image of the opposite side surfaces of the two adjacent microlenses on the display panel are located in a gap between two adjacent sub-pixels.
5. The display module according to claim 3 , wherein the display module further comprises a recessed channel formed between the two adjacent microlenses.
6. The display module according to claim 3 , wherein a focal length of the microlens satisfies:
f
=
4
h
2
+
L
2
8
h
(
n
-
1
)
-
h
(
n
-
1
)
wherein f is the focal length of the microlens, n is the refractive index of the main body layer, h is the height of the microlens, when a projection of the top surface of the microlens on the main body layer is rectangular, L is the length of the long side of the bottom surface of the microlens, when a projection of the top surface of the microlens on the main body layer is square, L is the length of the bottom surface of the microlens.Join the waitlist — get patent alerts
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